The BLM Series of chip ferrite beads from MuRata Manufacturing has been crafted to function nearly as a resistor at noise frequencies--a characteristic that greatly reduces the possibility of resonance and leaves signal waveforms undistorted. This series is effective in circuits without stable ground lines because it does not need a connection to ground. The nickel barrier … [Read more...]
Spread Spectrum IC Reduces EMI in USB Applications
A USB 2.0 Peak EMI Reduction IC from PulseCore Semiconductor uses spread spectrum technology to achieve compliance in USB applications. The PCS3P73U00A is based on patent-pending technology and is said to simplify EMI reduction while reducing or eliminating the need for expensive metal shielding, ferrite beads, conductive paint, or filtering networks. Spread spectrum clocking … [Read more...]
Catalog Details Wide Line of Shielding Products
A new catalog from Tech-Etch details the company's EMI/RFI shielding product line, including all sizes, shapes, compositions, mounting options, and seal types. This 52-page catalog features to-scale technical drawings, compression values, and metal thicknesses for over 100 BeCu and stainless steel finger stock shielding profiles--including low gasket profiles; soft no-snag … [Read more...]
EMI Test Software Targets Precompliance Testing
R&S®ES-SCAN EMI test software from Rohde & Schwarz has been crafted especially for precompliance and precertification EMI testing. Designed for use with R&S® ESPI test receivers, this package delivers a 32-bit application for testing in accordance with commercial standards. Its state-of-the-art MS Windows-style, straightforward user interface allows for quick … [Read more...]
Line of Custom Filters Targets Multiple Applications
A line of custom EMI filters offered by Electrocube provides solutions for unique filter requirements. Complete design engineering and testing capabilities are provided to customers in the military, industrial, electronic, and aerospace industries. Electrocube filters have current carrying capacities of 0.1 amp to 500 amps; voltage ratings of 1 VDC to 5000 VDC; frequencies to … [Read more...]
Multi-Channel Filter Arrays Feature Ultra-Compact Packaging
EMI filters in ultra-compact LLP leadless packages are available from Vishay Intertechnology. These arrays are the 4-channel VEMI45AA-HNH, the 6-channel VEMI65AA-HCI, and the 8-channel VEMI85AA-HGK. With a low profile of 0.6 mm and a pin-to-pin pitch of 0.4 mm, these VEMI filter arrays have been crafted to conserve board space and to provide EMI/ESD protection in portable … [Read more...]
ZERO GROUND Flexible (for EMI/RFI) Shielded Conduits
ZERO GROUND Flexible (for EMI/RFI) Shielded Conduits eliminate the need for costly, with long lead times and high minimum runs, custom shielded composite assemblies. These conduits are patent pending, utilize industry standard connectors, with most rated for direct burial and provide an excellent solution for those looking to effectively shield internal cables while providing … [Read more...]
Three-Line Filters Are Cost Optimized
The series FMAC ECO and FMBC ECO from Schurter Electronic Components are compact, cost-optimized filters that feature Schurter’s ECO design. They are especially well suited to drive systems, engineering installations, and any application in which frequency inverters cause electromagnetic disturbances. These filters have been configured for use with 480-VAC installations and are … [Read more...]
